高等学校化学学报

高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (11): 2247.

• 研究论文 • 上一篇    下一篇

染料敏化太阳能电池用TiO2薄膜电极的改性制备及光电化学性能

李丽1,2, 张贵友1, 陈人杰1,2, Dorina Walther3, 陈实1,2, 吴锋1,2   

  1. 1. 北京理工大学化工与环境学院, 北京 100081;
    2.国家高技术绿色材料发展中心, 北京 100081;
    3. Brandenburg Technical University of Cottbus, Cottbus, Germany
  • 收稿日期:2008-12-05 出版日期:2009-11-10 发布日期:2009-11-10
  • 通讯作者: 吴锋, 男, 教授, 博士生导师, 主要从事新型绿色电池及相关材料方面的研究. E-mail: wufeng863@vip.sina.com
  • 基金资助:

    国家“九七三”计划(批准号: 2009CB220106)资助.

Preparation and Modification of TiO2 Thin Film Electrode in Dye-sensitized Solar Cell and Its Photoelectrochemical Properties

LI Li1,2, ZHANG Gui-You1, CHEN Ren-Jie1,2, Dorina Walther3, CHEN Shi1,2, WU Feng1,2*   

  1. 1. Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;
    2. National Development Center of Hi-tech. Green Materials, Beijing 100081, China;
    3. Brandenburg Technical University of Cottbus, Cottbus, Germany
  • Received:2008-12-05 Online:2009-11-10 Published:2009-11-10
  • Contact: WU Feng. E-mail: wufeng863@vip.sina.com
  • Supported by:

    国家“九七三”计划(批准号: 2009CB220106)资助.

PDF (PC)

摘要：

以钛酸四异丙酯为钛源, 用水热法合成制备了具有典型锐钛矿晶型的TiO2纳米材料. 采用金属镍掺杂和表面包覆一层氧化钕, 对TiO2薄膜电极进行改性研究. 实验结果表明, 所制备纳米TiO2颗粒较均匀, 粒径约为17~18 nm. 经镍掺杂后, 颗粒团聚粒径明显增大, 但是仍保持均匀状态和多孔结构. 与改性前的TiO2薄膜电极相比, 金属掺杂和表面包覆有助于光生电子和空穴有效地分离, 电池的短路光电流提高了16%, 光电转换效率提高了17%.

关键词: 水热法; 纳米TiO2薄膜; 染料敏化; 掺杂

Abstract:

The tetraisopropyl titanate was used as titaniume source to prepare the TiO2 nanomaterial by the hydrothermal method. The TiO2 crystal is anatase. In order to enhance the electrode′s photoelectrochemical performance, the metal nickel doping and superficial gable neodymium oxide were used. The experimental results indicate that the nanometer TiO2 pellets have all the same shape and a particle size of approximately 17—18 nm. After nickel doping, the granularity increased obviously, but still maintained the even condition and the vesicular structure. Compared with the ordinary TiO2 thin film electrode, the metal doping and the superficial gable is helpful for separating the electron and the hole. The solar cell′s short circuit photoelectric current enhanced by 16% and the electro-optic transfer efficiency enhanced by 17%.

Key words: Hydrothermal method; TiO2 thin film; Dye sensitization; Doping

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